i think he cant....till now he is just using the outer path...i.e the 7th path....
it is becoz of the outer path u can create ur 6 paths....in obito's case...as he has done with the 6 jinchurikis.....
he can control the gedo mazou as he has both uchiha and senju's power(dna)
neither of the jinchuriki used their respective path's power.....